Holo-imager

A Holo-imager is a device that takes three-dimensional holographic pictures. While most people use it just to take pictures of meaningful moments, it is also employed by Starfleet Medical in order to take complete anatomical scans of people (a technique used, for instance, by Voyager's Doctor).

While it is reported that some people use Holo-imagers to take pictures of their food, there is no proof this actually ever happens.